Here is the full list of all 10 Asteroid RKD achievements.
Reach the rank of Acting Sub-Lieutenant
Reach the rank of Sub-Lieutenant
Reach the rank of Lieutenant
Reach the rank of Lieutenant-Commander
Reach the rank of Commander
Reach the rank of Captain
Reach the rank of Commodore
Reach the rank of Rear Admiral
Reach the rank of Vice-Admiral
Reach the rank of Admiral